[ILUGC] Re: help to understand this bash output
- From: M K Saravanan <mksarav@xxxxxxxxx>
- To: ilugc@xxxxxxxxxxxxx
- Date: Sun, 15 Jan 2023 21:38:13 +0800
$ echo '1 2 3 4 5 6' | while read a b c; do
echo result: $c $b $a;
done
result: 3 4 5 6 2 1
When executing line one, I am expecting the output to be:
1 2 3 4 5 6
SO during reading, I am assuming, a,b,c will take the values 1 2 3
respectively. so the next echo will print:
result: 3 2 1
the while loop will go to another round and read the remaining 3 values and
hence a b c will take the value 4,5,6 respectively and hence the result at
end be:
result: 3 2 1 6 5 4
But what is being printed is:
result: 3 4 5 6 2 1
So clearly I misunderstood something above in my logic. Hence asking for
help.
mks
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